package com.example.environment.config.interceptor;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class AdminInterceptor implements HandlerInterceptor {
    private static Logger logger = LoggerFactory.getLogger(HandlerInterceptor.class);
    /**
     * 在请求处理之前进行调用（Controller方法调用之前）
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
        try {
            Cookie[]  cookies = request.getCookies();
            String uid ="";
            if(cookies != null && cookies.length > 0){
                for (Cookie cookie : cookies){
                    if ("uid".equals(cookie.getName())){
                        uid =cookie.getValue();

                        break;
                    }
                }
            }
            HttpSession  session= request.getSession();
            if(null != session.getAttribute(uid)){
                session.setAttribute(uid, session.getAttribute(uid));
                session.setMaxInactiveInterval(2 * 60);
                return true;
            }
        } catch (Exception e) {
            logger.error("拦截器异常",e);
        }
        return false;
    }


    /**
     * 请求处理之后进行调用，但是在视图被渲染之前（Controller方法调用之后）
     */
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
//         System.out.println("执行了TestInterceptor的postHandle方法");
    }

    /**
     * 在整个请求结束之后被调用，也就是在DispatcherServlet 渲染了对应的视图之后执行（主要是用于进行资源清理工作）
     */
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
//        System.out.println("执行了TestInterceptor的afterCompletion方法");
    }
}
